48.6 is today's daily digit - it's Markit's gauge of business activity across the euro zone. It's still hovering below the magic 50 mark that signifies growth, but it has risen consistently for three months. Thousands of firms - from banks to restaurants - were surveyed and most haven't been this optimistic since last May. Germany even got its biggest one-month rise in four years. But it's not an even picture - the divide between the region's economies is growing.